CVE-2025-21557: Vulnerability in Oracle Application Express (component: General)

Routine

MEDIUM 5.4DOWNGRADE

CVE-2025-21557 is a medium-severity flaw (CVSS 5.4) affecting application express. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in Oracle Application Express (component: General). Supported versions that are affected are 23.2 and 24.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Application Express. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Application Express, attacks may significantly impact additional p

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-863
Published	2025-01-21
Last modified	2026-06-17

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-01-21 21:15 UTCPublished CVE record published
2026-06-17 08:43 UTCUpdated Record last modified

oracle application express DOWNGRADE

Affected: 23.2 · 24.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 23.2

1. Check installed version

apt-cache policy application-express || rpm -q application-express || application-express --version

2. No fixed release: DOWNGRADE to a release before 23.2 (Debian / Ubuntu)

apt-cache madison application-express sudo apt install application-express=<VERSION_BEFORE_23.2> sudo apt-mark hold application-express

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list application-express sudo dnf downgrade application-express-<VERSION_BEFORE_23.2> sudo dnf versionlock add application-express

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-21557?

application express: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-21557 being exploited?

CVE-2025-21557 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-21557 affect?

CVE-2025-21557 affects application express. Severity is medium (CVSS 5.4). Vulnerability in Oracle Application Express (component: General). Supported versions that are affected are 23.2 and 24.1. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Ap

How urgent is CVE-2025-21557?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2025-50067 CRITICAL 9.0 DOWNGRADE Vulnerability in Oracle Application Express (component: Strategic Planner Starter App)
CVE-2024-21261 MEDIUM 4.9 DOWNGRADE Vulnerability in Oracle Application Express (component: General)

References

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